--- currentMenu: doctrine-dbal -------------------------- # Doctrine DBAL First, you will need to install the adapter: ```bash composer require gaufrette/doctrine-dbal-adapter ``` In order to use the adapter, you will need to prepare the table with the following columns: | Columns | |----------| | key | | content | | mtime | | checksum | ## Example `Doctrine` adapter takes three arguments: * the first, mandatory, is a prepared DBAL connection (you can read more about it in [the DBAL docs](http://doctrine-orm.readthedocs.org/projects/doctrine-dbal/en/latest/reference/configuration.html)) * the second, mandatory, is a table name where the files will be stored * the third one is optional array of columns, which allows you to override the default column names ```php